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Installation guide

Rev. 032304

( Continued )

Specifications

2-Channel (Stereo) control

Impedance matching:
2x, 4x, 8x and 16x multiplying

12 step rotary knob:
up to 42dB total attenuation

Frequency: 20 - 20,000 Hz

Power handling: 100 watts maximum

Unicom’s Wall Mount Impedance Matching Volume
Control is crafted for maximum performance and
durability. Impedance matching ensures crystal clear
sound in any room in your home. Follow the simple
instructions below to start enjoying your quality Unicom
product.

Installation Instructions

1) Remove about 1/4” of insulation from the ends of all

wires to be connected to the Volume Control. Twist the
cable strands to tighten.

Note: The removable speaker/input connectors accept
up to 14 gauge cable.

2) For easier installation, remove the blue connectors

from the Volume Control.

3) Loosen the set screws on the connectors.

4) Connect the leads from the amplifier or receiver to the

INPUT connections; LEFT L (+) and (-) and RIGHT R (+)
and (-). Insert the wire into the correct opening and
tighten the screws firmly.

5) Connect the speaker wires from the speakers to the

OUTPUT connector on the Volume Control. Make sure
that the positive (+) and negative (-) wires of each
speaker are mated to the correct opening on the
connector. Incorrectly wiring this connection will
result in poor sound quality.

6) Replace the blue connectors. 

7) Configure jumpers for the total number of speaker

pairs used in the entire installation. 
(see note on page 2)

8) Install the completed assembly into the electrical box

or opening. 

Note:  Insert carefully to avoid excessive strain on the
set screws. If necessary, pre-dress the wires for easier
mounting.

That’s it! Now you’ve made all of the necessary
connections.

Overview:

This guide will facilitate the installation of the Wall Mount Impedance Matching
Volume Control  (p/n: UHB1-VC242). Also discussed are cable handling guidelines.

Product:

Wall Mount Impedance Matching Volume Control 

(p/n: UHB1-VC242)

Tools
you’ll need:

small flat or phillips screwdriver, wire cutters/strippers

UNICOM Electric, Inc.
908 Canada Court
City of Industry, California  91748
U.S.A.

www.unicomlink.com

E-mail: [email protected]
Technical Support:  1.800.346.6668
International:   626-964-7873

UNICOM’s 5 Year Product Warranty will warrant that all UNICOM
products

*

will be free from defects in material and workmanship

for a period of 5 years from the original date of purchase.

*Excludes all UNICOM testers and Industrial Switches.

See www.unicomlink.com for more information

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